Putter head having dual striking face

ABSTRACT

A putter head having a dual striking face, includes a body having a weight balancer and a putter neck having a connection means for making a shaft connected thereto, and a putter face formed at a front of the body, wherein the putter face is formed of a first striking face having a flat surface formed at a region between two lines of an upper boundary line and a lower boundary line that cross a center portion thereof in a transverse direction, a stylobate formed in a curved shape above the upper boundary line, and a second striking face formed in a curved shape below the lower boundary line, thereby the putter face is formed in combination with a flat surface of the first striking face and a curved surface of the second striking face.

BACKGROUND

(a) Technical Field

The present disclosure relates to a putter head having a dual striking face. More particularly, it relates to a putter head having a dual striking face that is formed differently in the structure and shape thereof at a putter face of a front coming into contact with a golf ball thereby enhancing the touch in the course of an impact, a forward movement of a golf ball and accuracy of putting.

(b) Background Art

To play a round of golf course, various kinds of golf clubs are used according to the lay of the land or the distance, and golf putters among these golf clubs are used at the time when a hole is finally targeted during play on the green.

The golf putter is formed of a putter head having a striking face, a shaft coupled to the putter head, a grip and so on. Since golf score is generally dependent upon an accuracy of putting for targeting a hole, a putter head of a golf putter is applied thereto with various types of techniques for making a golf ball be on an accurate trajectory.

A putter head which is currently applied to most golf putters has mainly a plane shaped putter face on which various types of grooves are formed.

Since the putter head a golf ball striking putter face of which is formed in a flat shape, when the flat putter face hits a round golf ball to push the golf ball in a forward direction, it is not easy to make a golf ball roll smoothly (moving forward while rolling) due to impact during a putting stroke and accordingly it is not easy to make a golf ball move along a desired trajectory. In addition, since the golf ball may be lifted due to the edge portion formed at the lower end of the putter face in the course of finishing the impact (a process of a golf ball leaving the striking face), it is frequently occurred a phenomenon that the golf ball jumps up by a certain distance and then falls down to move forward. In this manner, if a golf ball jumps up and then moves forward, the golf ball strays out of a golfer's desired trajectory or the force of striking is not transferred accurately to the golf ball thereby making it difficult for a golf ball to reach the desired place.

To solve the problems of the flat type putter head mentioned above, it was developed a putter head having a round type putter face in order for the round putter face to hit a golf ball as if sweeping the golf ball up thereby making a golf ball roll smoothly and preventing a golf ball from jumping caused by an edge portion of the putter face. Such round type putter face may make it easy for a golf ball to move forward while rolling thereby enhancing the straightness of a golf ball movement and preventing the golf ball from jumping up so that the golf ball may move along a desired path. However, since the round putter face hits a golf ball in such a manner that a round portion of the putter face is in contact with a round portion of the golf ball during the impact of a golf ball with the face, there may be a problem that a hitting spot of swing may be limited to a very narrow range thereby increasing the frequency of missing a shot, particularly, accelerating the frequency of missing a shot.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.

SUMMARY OF THE DISCLOSURE

The present invention has been made in an effort to solve the above-described problems associated with a conventional putter head. An object of the present invention is to provide a dual striking putter head capable of hitting a golf ball by a stable touch during a putting stroke and preventing a golf ball from jumping up at the time of striking the ball thereby making the golf ball smoothly move forward while rolling so that the golf ball may accurately reach a target position along a desired trajectory.

In one aspect, the present invention provides a putter head including a body having a weight balancer and a putter neck having a connection means for connecting to a grip (P), and a putter face formed at a front of the body, wherein the putter face is formed of a first striking face having a flat surface formed at a region between two lines of an upper boundary line and a lower boundary line that cross the center portion thereof in a transverse direction, a stylobate formed in a curved shape above the upper boundary line, and a second striking face formed in a curved shape below the lower boundary line, thereby the putter face is formed in combination with a flat surface of the first striking face and a curved surface of the second striking face.

According to the present invention, the putter face is formed in combination with a flat surface of the first striking face and a curved surface of the second striking face and a striking spot is formed on the flat surface of the first striking face, thereby allowing minimizing the frequency of missing a shot during a putting stroke, and, at the same time, preventing a golf ball from jumping up at the time of striking the golf ball because the second striking face of curved surface, which is formed adjacent the first striking face, smoothly pushes the golf ball while sweeping the golf ball up in the course of finishing an impact of the putting stroke. In addition, the putter face of the present invention may make a golf ball smoothly roll and move forward immediately after the impact of putting stroke so that the golf ball stricken by the putter face thus formed may accurately move along a desired trajectory.

After all, the putter head of the present invention may make it easy for a golfer to perform an accurate putting stroke thereby helping a golfer enhance his score, and make a surface of a golf ball be in contact smoothly with the surface of the putter head from the first striking face to the second striking face in the course of the impact of putting stroke, and, at the same time, allowing a golf ball to roll, thereby enhancing the touch at the time of the impact and giving emotional stability to a golfer.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features of the present invention will now be described in detail with reference to certain exemplary embodiments thereof illustrated the accompanying drawings which are given hereinbelow by way of illustration only, and thus are not limitative of the present invention, and wherein:

FIG. 1 is a perspective view showing a putter head according to a preferred embodiment of the present invention;

FIG. 2 is a longitudinal section view showing a putter head according to a preferred embodiment of the present invention;

FIGS. 3A, 3B are reference views illustrating a course of striking a golf ball with the putter head according to a preferred embodiment of the present invention; and

FIG. 4 is a state view illustrating a use state of the putter head according to a preferred embodiment of the present invention.

It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various preferred features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment.

In the figures, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing.

DETAILED DESCRIPTION

Hereinafter reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

FIG. 1 is a perspective view showing a putter head 1 according to a preferred embodiment of the present invention. As shown in FIG. 1, the putter head of the present invention includes a body 20 having a weight balancer 21 and a putter neck 22 having a connection means 23 for making a shaft (P) connected thereto, and a putter face 30 formed at a front of the body 20. The putter face 30 is formed of a first striking face 31 having a flat surface formed at a region between two lines of an upper boundary line 33 a and a lower boundary line 32 a that cross the center portion of the putter face 30 in a transverse direction when viewed from the front of the putter face 30, a stylobate 33 formed above the upper boundary line 33 a, and a second striking face 32 formed below the lower boundary line 32 a, respectively.

FIG. 2 is a longitudinal section view of the putter head 10 according to a preferred embodiment of the present invention. As shown in FIG. 2, the first striking face 31, which is formed between the upper boundary line 33 a and the lower boundary line 32 a, is formed in a flat shape. The stylobate 33, which is formed above the upper boundary line 33 a, is formed in a curved surface, and the second striking face 32 which is formed below the lower boundary line 32 a is formed in a curved surface. That is, the putter face 30 of the present invention is formed in combination with a flat surface of the first striking face 31 and a curved surface of the second striking face 32.

It is preferable that a curved surface of the second striking face 32 and the stylobate 33 is more than Ø 20 and less than Ø 45 in its radiuses of curvature R1, R2 and the interval L between the upper boundary line 33 a and the lower boundary line 32 a dividing the first striking face 31 is more than 2 mm and less than 20 mm.

The curved surface of the second striking face 32 should absolutely be limited to the range of Ø 20 to Ø 45 in its radius of curvature R1. Otherwise, in a case where its radius of curvature R1 is less than Ø 20, it is not only agreeable to the touch with a golf ball at the time of impact of a putting stroke, but it may also be occurred a phenomenon that a golf ball jumps up in the course of finishing the impact. In addition, in a case where its radius of curvature R1 is more than Ø 45, it is difficult to make a golf ball smoothly move forward while rolling because a phenomenon such as sweeping a golf ball up does not occur in the course of finishing the impact.

According to the present invention, the putter head may be used while the shaft P having a grip is coupled and fixed to the connection means 23 of the putter neck 22, as shown in FIG. 4. At this time, the first striking face 31 strikes a golf ball B in the course of impact of a putting stroke, and at the same time, the second striking face 32 pushes an upper portion of the golf ball stricken by the first striking face 31 downward while smoothly pushing the golf ball forward as if sweeping it up at a step of finishing the impact course after the striking, thereby it may prevent the golf ball B from jumping up (See FIG. 3A, 3B).

According to the preferred embodiment of the present invention, the putter head of the invention may not only prevent a golf ball B from jumping up during an impact of a putting stroke, but also it may make a golf ball B smoothly roll to move forward thereby securing an excellent straightness of movement, so that it may be easy for a golfer to make a golf ball B move along a desired trajectory and reach an accurate position while accurately maintaining a distance. In addition, it makes a golf ball B be in contact smoothly with the striking face from the first striking face 31 to the second striking face 32 during an impact of a putting stroke, thereby it may become agreeable to the touch at the time of the impact.

According to the preferred embodiment of the invention, even though a stronger force is applied to a putting stroke for a long putt and a hitting spot is formed at a central portion of the first striking face 31, since the second striking face 32 presses an upper portion of a golf ball B to smoothly push the ball as if sweeping it up during an impact of a putting stroke, it may not only minimize a number of times of golf ball's jumping-up even during a strong putting, but also make a golf ball B smoothly roll to move forward even during a strong putting thereby enhancing the straightness of movement, so that a golf ball B may move along a desired trajectory.

The invention has been described in detail with reference to preferred embodiments thereof. However, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. 

1. A putter head having a dual striking face, comprising: a body having a weight balancer and a putter neck having a connection means for making a shaft connected thereto, and a putter face formed at a front of the body, wherein the putter face is formed of a first striking face having a flat surface formed at a region between two lines of an upper boundary line and a lower boundary line that cross a center portion thereof in a transverse direction, a stylobate formed in a curved shape above the upper boundary line, and a second striking face formed in a curved shape below the lower boundary line, thereby the putter face is formed in combination with a flat surface of the first striking face and a curved surface of the second striking face.
 2. The putter head having a dual striking face according to claim 1, wherein a curved surface of the second striking face is more than Ø 20 and less than Ø 45 in its radiuses of curvature.
 3. The putter head having a dual striking face according to claim 1, wherein an interval between the upper boundary line and the lower boundary line dividing the first striking face is more than 2 mm and less than 20 mm. 